.page-faq {
  --faq-gap: clamp(20px, 3vw, 32px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(32px, 5.5vw, 72px) clamp(38px, 6vw, 76px);
}

.page-faq .faq-hero .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(22px, 4vw, 44px);
  font-size: 14px;
  line-height: 1.4;
}

.page-faq .faq-hero .crumbs__item {
  color: var(--c-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: color var(--t-fast) linear, border-color var(--t-fast) linear;
}

.page-faq .faq-hero .crumbs__item:hover,
.page-faq .faq-hero .crumbs__item:focus-visible {
  color: var(--c-tiger-lit);
  border-bottom-color: var(--c-tiger);
}

.page-faq .faq-hero .crumbs__item[aria-current="page"] {
  color: var(--c-tiger);
  border-bottom-color: transparent;
}

.page-faq .faq-hero .crumbs__sep {
  color: var(--c-line);
}

.page-faq .faq-hero__eyebrow {
  display: inline-block;
  margin: 0;
  padding: 5px 11px;
  border: 1px solid rgba(245, 154, 24, .42);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--c-tiger);
  transform: skewX(-3deg);
}

.page-faq .faq-hero__title {
  margin: clamp(18px, 3vw, 30px) 0 0;
  max-width: 15ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 6.4vw, 72px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--c-paper);
}

.page-faq .faq-hero__lede {
  margin-top: clamp(16px, 2.2vw, 24px);
  max-width: 54ch;
  color: var(--c-mist);
}

/* ---------- 场景跳转 ---------- */
.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(28px, 4vw, 46px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--c-line);
}

.page-faq .faq-jump__link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 14px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.2;
  color: var(--c-paper);
  text-decoration: none;
  transition: border-color var(--t-fast) linear, background-color var(--t-fast) linear, color var(--t-fast) linear;
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  border-color: var(--c-tiger);
  background: rgba(245, 154, 24, .1);
  color: var(--c-tiger-lit);
}

.page-faq .faq-jump__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--c-tiger);
  font-variant-numeric: tabular-nums;
}

/* ---------- 分组头 ---------- */
.page-faq .faq-group .section__head {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .faq-group {
  scroll-margin-top: 90px;
}

/* ---------- 问答折叠 ---------- */
.page-faq .qa-list {
  border-top: 1px solid var(--c-line);
}

.page-faq .qa {
  border-bottom: 1px solid var(--c-line);
}

.page-faq .qa__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 19px 4px 19px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 1.7vw, 21px);
  line-height: 1.45;
  color: var(--c-paper);
  transition: color var(--t-fast) linear;
}

.page-faq .qa__q::-webkit-details-marker {
  display: none;
}

.page-faq .qa__q::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  width: 1px;
  height: 0;
  background: var(--c-tiger);
  transition: height var(--t-base) ease;
}

.page-faq .qa[open] .qa__q::before {
  height: calc(100% - 48px);
}

.page-faq .qa__q:hover,
.page-faq .qa__q:focus-visible {
  color: var(--c-tiger-lit);
}

.page-faq .qa__q:focus-visible {
  outline: 1px solid var(--c-tiger);
  outline-offset: 3px;
}

.page-faq .qa__q-text {
  min-width: 0;
}

.page-faq .qa__q-mark {
  position: relative;
  flex: 0 0 14px;
  width: 14px;
  height: 14px;
  margin-top: 6px;
}

.page-faq .qa__q-mark::before,
.page-faq .qa__q-mark::after {
  content: "";
  position: absolute;
  background: var(--c-tiger);
  transition: transform var(--t-base) ease, opacity var(--t-base) ease;
}

.page-faq .qa__q-mark::before {
  top: 50%;
  left: 0;
  width: 14px;
  height: 1px;
}

.page-faq .qa__q-mark::after {
  left: 50%;
  top: 0;
  width: 1px;
  height: 14px;
}

.page-faq .qa[open] .qa__q-mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .qa__a {
  max-width: 68ch;
  padding: 0 4px 24px 20px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-faq .qa__a p {
  margin: 0;
}

.page-faq .qa__a p + p {
  margin-top: 12px;
}

/* ---------- 换机四步 ---------- */
.page-faq .swap-steps {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-faq .swap-steps__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num title"
    "num body";
  column-gap: 15px;
  row-gap: 5px;
  align-items: start;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--c-ink-900);
}

.page-faq .swap-steps__num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: clamp(32px, 4.6vw, 46px);
  font-weight: 600;
  line-height: .9;
  color: var(--c-tiger);
  font-variant-numeric: tabular-nums;
}

.page-faq .swap-steps__title {
  grid-area: title;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(16px, 1.6vw, 18px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-paper);
}

.page-faq .swap-steps__body {
  grid-area: body;
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-mist);
}

/* ---------- 图片容器 ---------- */
.page-faq .faq-figure {
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  border: 1px solid var(--c-line);
  background: var(--c-ink-800);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-figure__caption {
  margin: 0;
  padding: 12px 16px;
  border-top: 1px solid var(--c-line);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .05em;
  color: var(--c-mist);
}

/* ---------- 礼包码节奏刻度 ---------- */
.page-faq .cadence {
  margin-top: clamp(24px, 3.4vw, 36px);
  padding: clamp(16px, 2.4vw, 24px);
  border: 1px solid var(--c-line);
  background: var(--c-ink-800);
}

.page-faq .cadence__lead {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--c-tiger);
}

.page-faq .cadence__row {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 6px;
}

.page-faq .cadence__cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 13px 4px;
  border: 1px solid var(--c-line);
  background: var(--c-ink-900);
  text-align: center;
}

.page-faq .cadence__num {
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.2vw, 20px);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--c-paper);
}

.page-faq .cadence__cap {
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--c-mist);
}

.page-faq .cadence__cell--past {
  border-style: dashed;
  background: transparent;
}

.page-faq .cadence__cell--past .cadence__num {
  color: var(--c-mist);
}

.page-faq .cadence__cell--now {
  border-color: var(--c-tiger);
  background: rgba(245, 154, 24, .1);
}

.page-faq .cadence__cell--now .cadence__num {
  color: var(--c-tiger-lit);
}

.page-faq .cadence__cell--now .cadence__cap {
  color: var(--c-tiger);
}

.page-faq .cadence__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-mist);
}

/* ---------- 显示问题三条 ---------- */
.page-faq .diag {
  display: grid;
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-faq .diag__card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--c-ink-900);
}

.page-faq .diag__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(16px, 1.6vw, 19px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-paper);
}

.page-faq .diag__body {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-faq .diag__body strong {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--c-signal);
  font-variant-numeric: tabular-nums;
}

/* ---------- 版本定位三步 ---------- */
.page-faq .lookup {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
}

.page-faq .lookup__item {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  column-gap: clamp(12px, 2vw, 22px);
  align-items: start;
}

.page-faq .lookup__idx {
  padding-top: 7px;
  border-top: 1px solid var(--c-tiger);
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 600;
  line-height: 1.2;
  color: var(--c-tiger);
  font-variant-numeric: tabular-nums;
}

.page-faq .lookup__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(16px, 1.7vw, 19px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-paper);
}

.page-faq .lookup__body {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-mist);
}

/* ---------- 反馈条目 ---------- */
.page-faq .report {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
}

.page-faq .report__item {
  border-left: 2px solid var(--c-tiger);
  padding: 2px 0 2px clamp(14px, 2vw, 20px);
}

.page-faq .report__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(16px, 1.7vw, 19px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-paper);
}

.page-faq .report__text {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-mist);
}

/* ---------- 文字补充与内联链接 ---------- */
.page-faq .faq-tail {
  margin: clamp(22px, 3vw, 32px) 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-faq .faq-inline {
  color: var(--c-signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(37, 224, 176, .45);
  padding-bottom: 1px;
  transition: color var(--t-fast) linear, border-color var(--t-fast) linear;
}

.page-faq .faq-inline:hover,
.page-faq .faq-inline:focus-visible {
  color: var(--c-tiger-lit);
  border-bottom-color: var(--c-tiger);
}

/* ---------- 结尾引导 ---------- */
.page-faq .faq-cta {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
}

.page-faq .faq-cta__text .section__kicker,
.page-faq .faq-cta__text .section__title,
.page-faq .faq-cta__text .section__lede {
  margin-left: 0;
}

.page-faq .faq-cta__text .section__title {
  margin-top: 10px;
}

.page-faq .faq-cta__text .section__lede {
  margin-top: 12px;
  max-width: 56ch;
  color: rgba(242, 245, 251, .82);
}

.page-faq .faq-cta__meta {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--c-tiger-lit);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-cta__actions .btn {
  min-width: 170px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 800px) {
  .page-faq .diag {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .swap-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-faq .faq-cta__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .page-faq .faq-cta__actions .btn {
    min-width: 0;
  }
}

@media (max-width: 639px) {
  .page-faq .faq-hero__title {
    max-width: none;
  }

  .page-faq .cadence__row {
    gap: 4px;
  }

  .page-faq .cadence__cell {
    padding: 10px 2px;
  }

  .page-faq .cadence__cap {
    font-size: 10px;
    letter-spacing: 0;
  }

  .page-faq .lookup__item {
    grid-template-columns: 38px minmax(0, 1fr);
  }

  .page-faq .faq-jump__link {
    flex: 1 1 auto;
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__q::before,
  .page-faq .qa__q-mark::before,
  .page-faq .qa__q-mark::after,
  .page-faq .faq-jump__link,
  .page-faq .faq-inline,
  .page-faq .faq-hero .crumbs__item {
    transition: none;
  }
}